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Product Summary

Ford 9 Inch, Rear Position, 11.25 Inch Rotor Diameter

  • Disc brake stopping power for Ford 9 inch rearends at nearly the same cost as rebuilding/replacing drum brakes
  • Kits include two bolt-on caliper brackets, two 11 1/4" vented rotors, two GM metric emergency brake style calipers, brake pads and hardware
  • These 11-1/4" rotors feature dual wheel bolt patterns to fit 5 on 4-1/2" and 5 on 4-3/4" axles
  • These are compatible with axle flange diameters of 6-1/4" or smaller
  • These 1978-up GM Metric calipers accept either GM or Lokar type emergency brake cables

Comes as a Kit

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Key Specs

MFG. Part #9102730
PositionRear
Rotor Diameter11.25 Inch
Rotor TypeVented
Caliper PistonsOne
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Need To Know

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Speedway Motors 9102730 Details

Disc Brake Stopping Power at a Great Value

This economical disc brake kit for Ford 9 inch  rear ends with Curie axles is simple to install and provides big stopping power, at a price nearly the same as replacing original drum brakes. That Ford rear end handles the power to make it go, but these binders clamp down when you say whoa! Today’s average family sedan can stop from 60 MPH in 120 feet, at nearly 1G of deceleration. You need the same stopping power. Your passengers, you and your car deserve the confidence of disc brakes and our kit delivers that confidence with exceptional value.

Superior to Drum Brakes

Aftermarket disc brakes are superior to original drums in many ways: more braking force, less brake fade, and easier service. Stopping power starts with our newly manufactured GM Metric D154 style single piston calipers, commonly found on 1978-88 GM G-Body and A-Body cars. Large 11-1/4” diameter, 1” thick vented rotors provide more stopping leverage than common 9” or 10” drum brakes. Brake pads are easier to change than drum shoes, and our brake kit includes a street-friendly organic compound for long rotor/pad life. Replacement pads are common sized, available from your local auto parts store. Looking for more aggressive stopping power? We carry race-grade D154 disc brake pads that drop in just as easily.

Fits Ford 9 Inch Housings with Currie Axles

This disc brake kit fits Ford 9 inch axle housings with “big bearing” ends (3.150” O.D. bearing, found on passenger cars from 1974-79). Included bracketry will adapt this kit to both “new style” and “old style” Ford 9 inch housing flanges with the 3/8” bearing retainer bolt holes. Bracket spacers are also included, allowing this kit to work with axle flange offsets of 2-3/8” or 2-1/2” common on Ford 9 inch passenger car rear ends. Axle flange offset is measured from the axle housing flange face (with bearing retainer removed) to the axle shaft flange face (side where the brake rotor/drum rides, including the thickness of the axle flange). 

Hardware and Instructions Included

Kit includes a detailed, step-by-step instruction sheet with images. The floating calipers include new Grade 5 slider bolts, with all remaining hardware of Grade 8 quality. Cast iron rotors feature a dual bolt pattern in 5x4.5” (Ford/Mopar/AMC) or 5x4.75” (Chevy/GM) to match your desired wheel hub pattern. Plus, this assembly will clear most 15” diameter wheels designed with disc brakes in mind. Note that there are provisions for a parking brake, making this the perfect disc brake conversion kit for the budget-focused builder who prefers a basic upgrade kit.

  • Disc brake stopping power at nearly the same cost as rebuilding/replacing drum brakes
  • 11-1/4” diameter, 1” thick vented cast iron rotors dissipate heat faster than drum brakes
  • Serviceable design ensures good drivability and piece-of-mind when on the road
  • Street-friendly GM D154 style pads, replacements available nearly everywhere
  • GM “Metric” style single piston calipers with 7/16”-20 banjo-style inlets
  • Fits Ford “big bearing” 9 inch housings from passenger cars and 8 inch rear ends
  • Use with Ford 9 inch rear ends with 2-3/8” or 2-1/2” axle flange-to-housing offsets
  • Dual wheel bolt patterns covering all GM/Ford/Mopar (5x4.5” for 1/2” studs, 5x4.75” for 7/16” studs)
  • Use with 15” or larger disc brake-style wheels
  • Easy bolt-on installation w/ included instruction sheet
  • Includes heavy steel mounting brackets, Grade 8 hardware and nylock nuts (everything you need)

 

Included in this Kit:

(2) 11-1/4 Inch Rear Brake Rotor for Currie Axles

(1) GM Metric Disc Brake to 9 Inch Ford Bracket Set

(1) Ford 9 Inch Brake Bolt Kit

(1) 1978-Up GM Metric Emergency Brake Caliper, LH, 5.45 Mount Bolts

(1) 1978-Up GM Metric Emergency Brake Caliper, RH, 5.45 Mount Bolts

Specs

The caliper piston pin needs to be aligned with the notch in the pad to avoid fitment issues.

Speedway Motors 9102730 Specifications

KEY SPECS
MFG. Part #9102730
BrandSpeedway Motors
PositionRear
Rotor Diameter11.25 Inch
Rotor TypeVented
Caliper PistonsOne
Caliper FinishNatural
ColorNatural
Parking Brake ProvisionYes
Minimum Recommended Wheel Diameter15 Inch
Rotor ShapeRound
Hardware IncludedYes
Rear Caliper IncludedYes
Ford Bearing End StyleBig Ford (Old/New)
Rear Rotor IncludedYes
Bolt Pattern5 on 4.5" | 4.75"
GENERAL
Sold in QuantityKit
FinishNatural
Rotor FinishNatural
Rotor Material TypeCast Iron

Ratings & Reviews

5

4 Reviews

Overall Assessment

Customers appreciate the product for its perfect fit over larger Currie axles. There has been a notable concern about the rotor lug size in the 5 on 4.75 stud pattern, but it is fixable by resizing the holes. The premium quality material endorsed the product's durability even further. The precise fit and easy adjustability differentiate our product from the competitors.

5

4 reviews

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Filter by Ratings

52 Henry J project

5.0

4 months ago

roadapple

johnson city tn.

Verified

just collecting parts right now as i have the money. will be a while before i start

Would Recommend

yes

5.0

5 months ago

horn

merced cal

Verified

street rod, easy to use and clean looking

Would Recommend

These fit great

5.0

a year ago

Corey

Fort worth TX

Verified

I bought these to fit over the larger Currie axles. No issues at all

Would Recommend

Fit issues

5.0

2 years ago

Tom J

Crestview, Fl

Verified

Rotor lug size was too small on the 5 on 4.75 stud pattern. Fixed by red rolling hols to the right size.

Showing 4 of 4 reviews

Fitment

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